What happened 30 Shevat In Jewish History 30 Shvat 5404 (Feb. 7, 1644): HaRav Yomtov Lipman Heller (1579-1654) Appointed Rav of Krakow What makes this day so important? In the universal scheme of things, it may be seen as a small event for a 17th century rabbi to be appointed the rabbi of a city. […]